It is hard for me to say what else you need to know, with out knowing how much of a background knowledge you have about this sort of stuff. Do you know how many days you plan on doing the cleanse? There are some basic things you need to know about fasting that you should be able to gather from reading The Master Cleanse info link out of the homepage of this website. These is a lot of info out there about doing the cleanse. There are slight variations depending upon who you talk to. From what I gather you are just going to need to drink at least 6 glasses of the lemonade mixture per day, and then lots of additional water. (your weight/2 in oz) You also need to be drinking a laxative tea before bed and doing either the salt water flush or Bentonite and psillium shake in the morning to keep you cleaned out. Are you planning on doing a Liver Flush at the end as well? you will probably have the book in time for that, but you will need to know that you need to come off of the fast slowly with easy to digest foods like vegetable juice and then cooked or raw veggies and broths etc. Let me know if this helps or if you need more info. I am assuming you have some basic knowledge of what all this stuff is.